Question

使用jquery怎么根据ID给元素赋值

Answer 1

方法/步骤

1
编写页面：
<input type="button" value="按价格" name="score" id="bypic" onclick="bypicord()">
<input type="hidden" value="desc" id="ordercon">
2
编写js:
<script type="text/javascript">
function bypicord(){
var reorder = $("#ordercon").val();
if("desc" == reorder){
$("#ordercon").val("asc");

var url = "<%=path
%>/product/listproduct.action?uid="+${sessionScope.user.id}+"&sort=price&ten=Y&FROMBUS=Y&order=asc";
gotoquery(url);
//window.location.href =gotoquery('url');
}else {
$("#ordercon").val("desc");
reorder = "desc";

var url = "<%=path
%>/product/listproduct.action?uid="+${sessionScope.user.id}+"&sort=price&ten=Y&FROMBUS=Y&order=desc";
gotoquery(url);
}

}
</script>
其中的：$("#ordercon").val("asc");就是给id为ordercon的元素赋值
3
效果如下：

END
注意事项

其中的：$("#ordercon").val("asc");就是给id为ordercon的元素赋值
http://jingyan.baidu.com/article/9989c746058347f648ecfed8.html

Answer 2

方法/步骤

编写页面：
<input type="button" value="按价格" name="score" id="bypic" onclick="bypicord()">
<input type="hidden" value="desc" id="ordercon">
编写js:
<script type="text/javascript">
function bypicord(){
var reorder = $("#ordercon").val();
if("desc" == reorder){
$("#ordercon").val("asc");
var url = "<%=path %>/product/listproduct.action?uid="+${sessionScope.user.id}+"&sort=price&ten=Y&FROMBUS=Y&order=asc";
gotoquery(url);
//window.location.href =gotoquery('url');
}else {
$("#ordercon").val("desc");
reorder = "desc";
var url = "<%=path %>/product/listproduct.action?uid="+${sessionScope.user.id}+"&sort=price&ten=Y&FROMBUS=Y&order=desc";
gotoquery(url);
}

}

</script>
其中的：$("#ordercon").val("asc");就是给id为ordercon的元素赋值

Answer 3

比如$("#a").val("m")